package org.ws.kardex.servlets.products;

import com.google.appengine.api.datastore.Key;
import com.google.appengine.api.datastore.KeyFactory;
import java.io.IOException;
import javax.jdo.PersistenceManager;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.ws.kardex.gae.PMF;
import org.ws.kardex.model.Inventory;
import org.ws.kardex.model.Product;

/**
 *
 * @author gerardino
 */
public class New extends HttpServlet {

    private static final String P_INVENTORY_ID = "iid";
    
    /** 
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        
        PersistenceManager pm = PMF.pm;
        
        Key inventoryKey = KeyFactory.createKey(
                Inventory.class.getSimpleName(),
                Long.parseLong(request.getParameter(P_INVENTORY_ID)));
        Inventory i = pm.getObjectById(Inventory.class, inventoryKey);
        
        Product p = new Product("", "");
        p.setInventory(i);
        
        request.setAttribute("p", p);
        
        String destino = "/Products/edit.jsp";
        request.getRequestDispatcher(destino).forward(request, response);
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /** 
     * Handles the HTTP <code>GET</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Handles the HTTP <code>POST</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Returns a short description of the servlet.
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
